何なん年ねん生せいMeaningsExpression1. what grade (in school)Kanji used何what年year生lifePitch accentなんねんせいComposed of何なん年ねんhow many years; how long; what yearNoun生せいlife; living; I; me; myself; studentNounExamples2君きみの妹いもうとさんは何なん年ねん生せいなの?What grade is your sister in?君きみは何なん年ねん生せいですか。What grade are you in?